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N,N-Diphenyl-p-phenylenediamine
Synonyms 4,4'-diphenyl-p-phenylenediamine,Antioxidant H
CAS No. 74-31-7
Structure
Specification Initial melting point,℃  135 Min. 
Ash content , %(m/m) 0.4 Max. 
Decrement by heating ,%(m/m) 0.4 Max 
Remainder through sieving ,% (m/m) 1.0 Max. 
Appearance  Sundown powder
Application Applied as antioxidant.
Remaks


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